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315311242525 = 5230114188791
BaseRepresentation
bin1001001011010100000…
…00111011110100011101
31010010212120201201220121
410211222000323310131
520131224134230100
6400504010114541
731531464224356
oct4455200736435
91103776651817
10315311242525
111117a4a81444
125113911ba51
132396ccb0a26
1411392824d2d
1583069a351a
hex496a03bd1d

315311242525 has 12 divisors (see below), whose sum is σ = 391115886624. Its totient is φ = 252165158000.

The previous prime is 315311242523. The next prime is 315311242619. The reversal of 315311242525 is 525242113513.

It is not a de Polignac number, because 315311242525 - 21 = 315311242523 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315311242523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2019121 + ... + 2169670.

It is an arithmetic number, because the mean of its divisors is an integer number (32592990552).

Almost surely, 2315311242525 is an apocalyptic number.

It is an amenable number.

315311242525 is a deficient number, since it is larger than the sum of its proper divisors (75804644099).

315311242525 is a wasteful number, since it uses less digits than its factorization.

315311242525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4191812 (or 4191807 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

The spelling of 315311242525 in words is "three hundred fifteen billion, three hundred eleven million, two hundred forty-two thousand, five hundred twenty-five".

Divisors: 1 5 25 3011 15055 75275 4188791 20943955 104719775 12612449701 63062248505 315311242525